| Bolingbrook to Oberkirch | 4,392.24 mi (7,068.63 km) |
| Bolingbrook to Obernburg am Main | 4,381.32 mi (7,051.05 km) |
| Bolingbrook to Obernkirchen | 4,287.83 mi (6,900.59 km) |
| Bolingbrook to Oberschleissheim | 4,534.32 mi (7,297.29 km) |
| Bolingbrook to Oberstdorf | 4,519.95 mi (7,274.16 km) |
| Bolingbrook to Obertraubling | 4,527.32 mi (7,286.01 km) |
| Bolingbrook to Obertshausen | 4,361.21 mi (7,018.69 km) |
| Bolingbrook to Oberursel | 4,346.53 mi (6,995.06 km) |
| Bolingbrook to Ochsenfurt | 4,422.83 mi (7,117.85 km) |
| Bolingbrook to Ochsenhausen | 4,480.87 mi (7,211.27 km) |
| Bolingbrook to Ochtrup | 4,221.24 mi (6,793.43 km) |
| Bolingbrook to Odenthal | 4,261.62 mi (6,858.41 km) |
| Bolingbrook to Oelde | 4,269.48 mi (6,871.06 km) |
| Bolingbrook to Oelsnitz | 4,468.54 mi (7,191.42 km) |
| Bolingbrook to Oer-Erkenschwick | 4,244.06 mi (6,830.15 km) |
